本欧洲标准规定了第3条规定的用于烟囱的预制混凝土烟道块的材料，尺寸和性能要求。烟道块可以是单壁或多壁结构。该标准不适用于带有背部通风的烟道。 本标准不包括湿式（W）与腐蚀等级3相结合的产品。 该标准还规定了一种类型的烟囱块，用于与砖石单元的高度尺寸坐标，称为B型（接合块）。 该欧洲标准也适用于加强处理的高高度和烟道。 注意除非另有说明，否则对烟道区域的任何提及都意味着烟道块及其配件

This European Standard specifies the materials, dimensional and performance requirements for precast concrete flue blocks as defined in Clause 3 for use in chimneys. The flue blocks may be of single wall or multi wall construction. The standard does not apply to flue blocks with back ventilation. This standard does not cover products designated wet (W) in conjunction with corrosion class 3. The standard also specifies a type of flue block to dimensionally co-ordinate with masonry unit coursing height, referred to as a type B (Bonding block). This European Standard also applies to storey-height and flue blocks reinforced for handling. NOTE Any reference to the term flue blocks implies both flue blocks and their fittings, except where otherwise indicated.